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All-Digital Phase Locked Loop for Clock Recovery

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All-Digital Phase Locked Loop for Clock Recovery

Stepped-up development of accelerator mass spectrometry method for the detection of ^(60)Fe with the HI-1. tandem accelerator

ICEMI'2.05第七届国际电子测量与仪器学术会议

作者： Huang wei Tao cheng ({2. of electronics and information engineering beijing jiaotong university beijing china)

A first-order all-digital phase locked loop for clock recovery is presented in this paper. The circuit is realized by EP1.50QC2.8-3, which is a kind of FPGA made by ALTERA, and all the components of t

关键词： Phase locked loop FPGA clock and data recovery circuit.

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Nuclear Science and Techniques 2024年第4期35卷 136-143页

作者： yang Zhang Sheng-Quan Yan Ming He Qing-Zhang Zhao Wen-Hui Zhang Chao-{1. Kan Jian-Ming Zhou Kang-Ning Li Xiao-Fei Wang Jian-{2. Liu Zhao-Hua Peng Zhuo Liang Ai-Ling Li Jian Zheng Qi-Wen Fan Yun-Ju Li You-Bao Wang Zhi-Hong Li yang-Ping Shen Ding Nan wei Nan Yu-Qiang Zhang Jia-Ying-Hao Li Jun-Wen Tian Jiang-Lin Hou Chang-{1. Guo Zhi-{2. Zhang Ming-Hao Zhu Yu-Wen Chen Yu-Chen Jiang Tao Tian Jin-Long Ma Yi-Hui Liu Jing-Yu Dong Run-Long Liu Mei-Yue-Nan Ma Yong-Shou Chen wei-Ping Liu Bing Guo china Institute of Atomic Energy P.O.Box 275(10)Beijing 102413China College of Science Southern University of Science and TechnologyShenzhen 518055China school of Physics Xi’an Jiaotong UniversityXi’an 710049China

The Moon provides a unique environment for investigating nearby astrophysical events such as *** samples retain valuable information from these events,via detectable long-lived“fingerprint”radionuclides such as^(60)*** this work,we stepped up the development of an accelerator mass spectrometry(AMS)method for detecting^(60)Fe using the HI-1.tandem accelerator at the{1. Institute of Atomic Energy(CIAE).Since interferences could not be sufficiently removed solely with the existing magnetic systems of the tandem accelerator and the following Q3D magnetic spectrograph,a Wien filter with a maximum voltage of±60 kV and a maximum magnetic field of 0.3 T was installed after the accelerator magnetic systems to lower the detection background for the low abundance nuclide^(60)Fe.A 1.m thick Si_(3)N_(4) foil was installed in front of the Q3D as an energy *** particle detection,a multi-anode gas ionization chamber was mounted at the center of the focal plane of the ***,an^(60)Fe sample with an abundance of 1.1.5×1.^(-1.)was used to test the new AMS *** results indicate that^(60)Fe can be clearly distinguished from the isobar^(60)*** sensitivity was assessed to be better than 4.3×1.^(-1.)based on blank sample measurements lasting 5.8 h,and the sensitivity could,in principle,be expected to be approximately 2.5×1.^(-1.)when the data were accumulated for 1.0 h,which is feasible for future lunar sample measurements because the main contaminants were sufficiently separated.

关键词： Accelerator mass spectrometry Wien filter Isobar separation Supernovae Chang'e-5 lunar samples

Intelligent Identification of Building Patches and Assessment of Roof Greening Suitability in High-density Urban Areas:A Case Study of chengdu

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Journal of Resources and Ecology 2022年第2期13卷 247-256页

作者： LUO Luhua CHEN Mingjie DONG Lulu SU wei LI {1. HU Xiaodong ZHANG {1. LI Chen cheng weiming shi Hanning LUO Jiancheng Faculty of Geomatics Lanzhou Jiaotong UniversityLanzhou 730070China national-Local Joint {1. {2. Center of Technological and Application for national Geographic State Monitoring Lanzhou 730070China Gansu Provincial engineering {1. for {2. Geographic State Monitoring Lanzhou 730070China College of Geoscience and Surveying engineering China University of Mining&Technology(Bejing)Beijing 100083China school of Earth Science and {1. Hebei University of EngineeringHebei 056000China Tianjin university Urban Planning and Design Institute Co.Ltd Tianjin 300072China State Key laboratory of Resources and Environmental {1. System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China The ImageSky International Co.Ltd SuzhouJiangsu 215000China Aerospace information {1. Institute Chinese Academy of SciencesBeijing 100101China school of Architecture Tianjin UniversityTianjin 300072China

With the expansion of a city,the urban green space is occupied and the urban heat island effect is *** the roof surfaces of urban buildings is an effective way to increase the area of urban green space and improve the urban ecological *** provide effective data support for urban green space planning,this paper used high-resolution images to(1.obtain accurate building spots on the map of the study area through deep learning assisted manual correction;and(2.establish an evaluation index system of roof greening including the characteristics of the roof itself,the natural environment and the human society *** weight values of attributes not related to the roof itself were calculated by Analytic Hierarchy Process(AHP).The suitable green roof locations were evaluated by spatial join,weighted superposition and other spatial analysis *** the areas within the chengdu city’s third ring road as the study area,the results show that an accurate building pattern obtained by deep learning greatly improves the efficiency of the *** roof surfaces unsuitable for greening can be effectively classified by the method of feature extraction,with an accuracy of 86.58%.The roofs suitable for greening account for 48.08%,among which,the high-suitability roofs,medium-suitability roofs and low-suitability roofs represent 45.32.,38.95%and 1..73%.The high-suitability green buildings are mainly distributed in the first ring district and the western area outside the first ring district in *** paper is useful for solving the current problem of the more saturated high-density urban area and allowing the expansion of the urban ecological environment.

关键词： deep learning roof greening suitability assessment spatial join weighted overlay

An efficient route to prepare suspended monolayer for feasible optical and electronic characterizations of two-dimensional materials

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InfoMat 2022年第2期4卷 126-138页

作者： Yuan Huang Yun-Kun Wang xin-Yu Huang Guan-Hua Zhang Xu Han {1. {1. Yunan Gao Lei Meng Yushu Wang Guang-Zhou Geng Li-wei Liu Lin Zhao Zhi-Hai cheng xin-Feng Liu Ze-Feng Ren Hui-Xia {1. Yufeng Hao Hong-Jun Gao xing-Jiang Zhou wei Ji Ye-Liang Wang Advanced research Institute of Multidisciplinary Science Beijing Institute of TechnologyBeijingChina beijing {1. {2. for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijingChina Songshan Lake Materials laboratory DongguanChina State Key laboratory for Artificial Microstructure and Mesoscopic Physics School of PhysicsPeking UniversityBeijingChina Frontiers Science Center for Nanooptoelectronics&Collaborative Innovation Center of Quantum Matter BeijingChina State Key laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalianChina Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuanChina Minzu university of{1. BeijingChina national {1. of Solid State Microstructures College of Engineering and Applied SciencesJiangsu Key Laboratory of Artificial Functional MaterialsCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjingChina school of {1. and {2. MIIT Key Laboratory for Low-Dimensional Quantum Structure and DevicesBeijing Institute of TechnologyBeijingChina Department of Physics and beijing Key {1. of Optoelectronic Functional Materials&Micro-Nano Devices Renmin University of ChinaBeijingChina national Center for Nanoscience and Technology(NCNST)of{1. BeijingChina Haian Institute of New Technology Nanjing UniversityHaianChina university of Chinese Academy of Sciences BeijingChina

Two-dimensional(2.)materials are highly sensitive to substrates,interfaces,and the surrounding *** 2. materials are free from substrate-induced effects,thus an ideal approach to study their intrinsic ***,it is very challenging to prepare large-area suspended 2. materials with high *** we report a universal method,based on pretreatments of densely patterned hole array substrates with either oxygenplasma or gold film deposition,to prepare large-area suspended mono-and few-layer 2. *** structural,optical,and electrical characterization tools were used to fully evaluate the improved performance of various suspended 2. *** of these observations reported in this study are:(1.Observation of a new Raman low frequency mode for the suspended MoS_(2.;(2.Significantly stronger photoluminescence(PL)and second harmonic generation(SHG)signals of suspended WSe_(2.,which enables the study of new optical transition processes;(3)The low energy electron diffraction pattern on suspended MoS_(2. also exhibits much sharper spots than that on the supported area;and(4)The mobility of suspended graphene device approaches 300000 cm^(2. V^(-1. s^(-1.,which is desirable to explore the intrinsic properties of *** work provides an innovative and efficient route for fabricating suspended 2. materials,and we expect that it can be broadly used for studying intrinsic properties of 2. materials and in applications of hybrid active nanophotonic and electronic devices.

关键词： mechanical exfoliation photoluminescence Raman spectrum suspended 2. materials

Enhancing sensing capacity of terahertz metamaterial absorbers with a surface-relief design

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Photonics research 2020年第4期8卷 519-527页

作者： wei WANG FENGPING YAN SIYU TAN HAISU LI XUEMEI DU LUNA ZHANG ZHUOYA BAI DAN {1. HONG ZHOU YAFEI HOU Key laboratory of All Optical Network&Advanced Telecommunication of EMC Institute of Lightwave TechnologyBeijing Jiaotong UniversityBeijing 100044China Zhengzhou xinda Institute of Advanced Technology Zhengzhou 450001China Department of electronics Information and Communication EngineeringOsaka Institute of Technology5-16-1 OmiyaAsahi-kuOsaka535-8585Japan Graduate school of Natural Science and Technology Okayama University1-1-1 TsushimanakaKita WardOkayama Prefecture700-8530Japan

Metamaterial absorbers(MAs)serve as important electromagnetic wave-absorbing devices that have captured the attention of researchers for a long *** as sensitive detectors to determine perturbations in an ambient environment is another significant subsidiary ***,we theoretically propose an optimized fabrication method to implement terahertz MAs with fewer steps and also evaluate both absorption and sensing performances of such MAs realized by the new *** findings demonstrate that such MAs can basically maintain the original absorption features perfectly,including near-complete absorption at resonance as well as strong robustness to wide incident ***,the full width at half-maximum and quality factor of the absorption resonances attenuate less than 2.%and 8%with this new method,remaining in the ranges of^0.03–0.04 THz and^2.–2. for two selected example *** significantly,sensing capacities of this type of MA,in terms of maximum detection range(enhancing at least 9%),observable spectral modulation(increasing at least 6.3%),and refractive index sensitivity,are improved to a large extent because of more intense coupling between resonant field and matter in the case of surface-relief *** stronger coupling results from exposing more spots of the resonantly high field to direct contact with an approaching analyte,which is illustrated by field profiles of the MAs at resonance in this ***,other desirable absorber features are also explored with such MAs,like functioning as building blocks to configure multiband MAs and strong robustness against fabrication *** new-style terahertz MAs shown in the paper,acting as good examples,not only prove that terahertz MAs can be fabricated by the proposed time-and cost-saving route in contrast to the traditional MA fabrication process,but also can serve as novel platforms to explore other intriguing terahertz photonic effects,such as the field enhancement e

关键词： Enhancing sensing capacity terahertz metamaterial absorbers a surface-relief design

2.2.0}Chinese consensus on the diagnosis and management of primary immune thrombocytopenia in pregnancy

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Chinese Medical Journal 2022年第8期135卷 887-889页

作者： Zhang Xiaohui Chen Fangping Chen Xiequn cheng Yunfeng Fang Meiyun Feng Jianming Fu Haixia Gao Hong Han Yue He Aili Hou Ming Hu Yu Huang Ruibin Huang Wenrong Jing Zhicheng Kong Peiyan Liang Aibin Liang Meiying Liu Daihong Liu Junling Liu Lin Liu Xiao{2. Ma Liangming Mei Heng Ni Heyu Niu Ting Peng Jun Qiao Jianlin Ren Jinhai Song Yongping Tang Liang V Tong Tong Wang Shaoyuan Wang xin Wang Zhao {2. Hui Wu Depei Wu Guangsheng Xu Caigang Xu Xue Xu Yajing yang Linhua yang Renchi yang Tonghua Yin chenghong Yu Li Zhang Guangsen Zhang Lei Zhang Liansheng Zhang Xi Zhao {2.li Zhao Yongqiang Zhou Daobin Zhou Hu Zhou Zeping Zhu Tienan Wang Jianliu Huang Xiaojun Department of Hematology Peking University People’s HospitalPeking University Institute of HematologyBeijing 100044China Department of Hematology Xiangya Third HospitalCentral South UniversityChangshaHunan 410013China Department of Hematology Xi Jing Hospital Affiliated to the Fourth Military Medical UniversityXi’anShaanxi 710032China Department of Hematology Qingpu Branch of Zhongshan HospitalFudan UniversityShanghai 528404China Department of Hematology Affiliated Zhongshan Hospital of Dalian UniversityDalianLiaoning 116001China Department of Hematology and Rheumatology Qinghai Provincial People’s HospitalXiningQinghai 810007China Department of Internal Medicine Beijing Obstetrics and Gynecology HospitalCapital Medical UniversityBeijing Maternal and Child Health Care HospitalBeijing 100026China Department of Hematology Jiangsu Institute of HematologyNational Clinical Research Center for Hematologic DiseasesThe First Affiliated Hospital of Soochow UniversitySuzhouJiangsu 215006China Department of Hematology The Second Affiliated HospitalMedical School of Xi’an Jiaotong UniversityXi’anShaanxi 710004China Department of Hematology Qilu HospitalCheeloo College of MedicineShandong UniversityJinanShandong 250063China Department of Hematology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Hematology The First Affiliated Hospital of Nanchang UniversityNanchangJiangxi 330006China Department of Hematology Chinese PLA General HospitalMedical School of Chinese PLABeijing 100039China Department of Cardiology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100005China Department of Hematology Medical Center of HematologyXinqiao HospitalThe Third Military Medical UniversityChongqing 400037China Department of Hematology Tongji Hospital of Tongji UniversityShanghai 200092China Department of Obstetrics and Gynecology Peking University People

Immune thrombocytopenia(ITP)is an acquired disease characterized by isolated thrombocytopenia,which is one of the most common causes of thrombocytopenia during *** with ITP who have severe thrombocytopenia are at an increased risk for life-threatening obstetric ***,we established this consensus statement on the diagnosis and management of ITP during pregnancy(detailed information is available in the Supplementary File,http://***7CM9/A978).

关键词： diagnosis pregnancy ITP

Optimization of performance of the KM2. full array using the Crab Nebula

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Chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.Mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.Sáiz D.Semikoz 邵澄宇邵琅 O.Shchegolev 盛祥东舒富文宋慧超 Yu.V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 LHAASO Collaboration Key laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China Tianfu Cosmic Ray research Center Chengdu 610000China Dublin Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State Key laboratory of Particle Detection and {1. China university of Science and Technology of{1. Hefei 230026China school of Physical Science and Technology&school of {2. Science and Technology Southwest Jiaotong UniversityChengdu 610031China school of Astronomy and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal university Shijiazhuang 050024China Key laboratory of Dark Matter and Space Astronomy&Key laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&school of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key laboratory for {1. in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key laboratory of Cosmic Rays(Tibet {1.) Ministry of EducationLhasa 850000TibetChina national Astronomical Observatories Chinese Academy of SciencesBeijing 100101China school of Physics and Astronomy(Zhuhai)&school of Physics(Guangzhou)&Sino-French Institute of Nuclear {2. and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China school of Physics and Astronomy Yunnan UniversityKunming 650091China Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array of the Large High Altitude Air Shower Observatory(LHAASO)has been in operation since July *** its kilometer-square array(KM2.),we optimized the selection criteria for very high and ultrahigh energyγ-rays using data collected from August 2.2.0}to August 2.2.,resulting in an improvement in significance of the detection in the Crab Nebula of approximately 1.%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly improved by approximately 1.%at tens of *** aspects of the full KM2. array performance,such as the pointing error,were also calibrated using the Crab *** resulting energy spectrum of the Crab Nebula in the energy range of 1.-1.00 TeV are well fitted by a log-parabola model,which is consistent with the previous results from LHAASO and other experiments.

关键词： γ-ray Crab Nebula significance

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基于反角白光中子源次级质子的探测器标定

物理学报 2021年第8期70卷 28-36页

作者：蒋伟江浩雨易晗樊瑞睿崔增琪孙康张国辉唐靖宇孙志嘉宁常军高可庆安琪白怀勇鲍杰鲍煜曹平陈昊磊陈琪萍陈永浩陈裕凯陈朕封常青顾旻皓韩长材韩子杰贺国珠何泳成洪杨黄翰雄黄蔚玲黄锡汝季筱璐吉旭阳姜智杰敬罕涛康玲康明涛李波李超李嘉雯李论李强李晓李样刘荣刘树彬刘星言栾广源穆奇丽齐斌斌任杰任智洲阮锡超宋朝晖宋英鹏孙虹孙晓阳谭志新唐洪庆唐新懿田斌斌王丽娇王鹏程王琦王涛峰王朝辉文杰温中伟吴青彪吴晓光吴煊解立坤羊奕伟于莉余滔于永积张林浩张奇玮张显鹏张玉亮张志永赵豫斌周路平周祖英朱丹阳朱科军朱鹏中国科学院高能物理研究所北京100049 散裂中子源科学中心东莞523803 北京大学物理学院核物理与核技术国家重点实验室北京100871 核探测与核电子学国家重点实验室中国科学院大学北京100049 中国科学技术大学近代物理系合肥230026 中国原子能科学研究院核数据重点实验室北京102413 中国工程物理研究院核物理与化学研究所绵阳621900 西北核技术研究院西安710024 中国科学技术大学工程与应用物理系合肥230026 北京航空航天大学物理学院北京100083

目前国内外的质子标定终端较少,且普遍为单能质子束流.基于中国散裂中子源的反角白光中子源的eV—2.0 MeV中子能量区间的白光中子束流,以及中子与氢的~1.(n, el)反应,可以获得宽能谱的能量连续次级质子.利用1.GSps采样率、1. bit的波形... 详细信息

目前国内外的质子标定终端较少,且普遍为单能质子束流.基于中国散裂中子源的反角白光中子源的eV—2.0 MeV中子能量区间的白光中子束流,以及中子与氢的~1.(n, el)反应,可以获得宽能谱的能量连续次级质子.利用1.GSps采样率、1. bit的波形数字化获取系统采集探测器输出波形信号,通过对波形信号的分析,得到中子及反冲质子的飞行时间,进而得到反冲质子的动能.利用该方法得到的质子,为探测器质子标定等研究提供了新的研究平台.在该研究平台已经开展了带电粒子望远镜的标定实验.研究了CsI (Tl)探测器不同的信号读出方式对望远镜的DE-E二维谱、幅度-质子动能二维谱等粒子鉴别方法得到的粒子鉴别的效果,得到了较优的探测器信号读出方案.该研究为带电粒子望远镜的建设提供了实验依据,也说明了基于反角白光中子源的宽能谱质子标定的可行性.

关键词：质子标定探测器 ~1.(n,el)反应反角白光中子源

Reconstruction of Cherenkov image bymultiple telescopes of LHAASO-WFCTA

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Radiation Detection Technology and Methods 2022年第4期6卷 544-557页

作者： F.Aharonian Q.An Axikegu L.X.Bai Y.X.Bai Y.W.Bao D.Bastieri X.J.Bi Y.J.Bi J.T.Cai Zhe Cao Zhen Cao J.Chang J.F.Chang E.S.Chen Liang Chen Liang Chen Long Chen M.J.Chen M.L.Chen Q.H.Chen S.H.Chen S.Z.Chen T.L.Chen Y.Chen H.L.cheng N.cheng Y.D.cheng S.W.Cui X.H.Cui Y.D.Cui B.D’Ettorre Piazzoli B.Z.Dai H.L.Dai Z.G.Dai Danzengluobu Ddella Volpe K.K.Duan J.H.Fan Y.Z.Fan Z.X.Fan J.Fang K.Fang C.F.Feng L.Feng S.H.Feng X.T.Feng Y.L.Feng B.Gao C.D.Gao L.Q.Gao Q.Gao W.Gao W.K.Gao M.M.Ge L.S.Geng G.H.Gong Q.B.Gou M.H.Gu F.L.Guo J.G.Guo X.L.Guo Y.Q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He S.L.He X.B.He Y.He M.Heller Y.K.Hor C.Hou X.Hou H.B.Hu Q.Hu S.Hu S.C.Hu X.J.Hu D.H.Huang W.H.Huang X.T.Huang X.Y.Huang Y.Huang Z.C.Huang X.L.Ji H.Y.Jia K.Jia K.Jiang Z.J.Jiang M.Jin M.M.Kang T.Ke D.Kuleshov K.Levochkin B.B.Li cheng Li Cong Li F.Li H.B.Li H.C.Li H.Y.Li J.Li Jian Li Jie Li K.Li WLLi XRLi xin Li xin Li YZLi Zhe Li Zhuo Li E.W.Liang Y.F.Liang S.J.Lin B.Liu C.Liu D.Liu H.Liu H.D.Liu J.Liu J.L.Liu J.S.Liu J.Y.Liu M.Y.Liu R.Y.Liu S.M.Liu W.Liu Y.Liu Y.N.Liu W.J.Long R.Lu Q.Luo H.K.Lv B.Q.Ma L.L.Ma X.H.Ma J.R.Mao A.Masood Z.Min W.Mitthumsiri Y.C.Nan Z.W.Ou B.Y.Pang P.Pattarakijwanich Z.Y.Pei M.Y.Qi Y.Q.Qi B.Q.Qiao J.J.Qin D.Ruffolo A.Sáiz C.Y.Shao L.Shao O.Shchegolev X.D.Sheng J.Y.shi H.C.Song Yu.V.Stenkin V.Stepanov Y.Su Q.N.Sun X.N.Sun Z.B.Sun P.H.T.Tam Z.B.Tang W.W.Tian B.D.Wang C.Wang H.Wang H.G.Wang J.C.Wang J.S.Wang L.P.Wang L.Y.Wang R.Wang R.N.Wang W.Wang X.G.Wang X.Y.Wang Y.Wang Y.D.Wang Y.J.Wang Y.P.Wang Z.H.Wang Z.X.Wang Zhen Wang Zheng Wang D.M.wei J.J.wei Y.J.wei T.Wen C.Y.Wu H.R.Wu S.Wu X.F.Wu Y.S.Wu S.Q.Xi J.Xia J.J.Xia G.M.Xiang D.X.Xiao G.Xiao G.G.xin Y.L.xin Y.xing Z.Xiong D.L.Xu R.X.Xu L.Xue D.H.Yan J.Z.Yan C.W.yang F.F.yang H.W.yang J.Y.yang L.L.yang M.J.yang R.Z.yang S.B.yang Y.H.Yao Z.G.Yao Y.M.Ye L.Q.Yin N.Yin X.H.You Z.Y.You Y.H.Yu Q.Yuan H.Yue H.D.Zeng T.X.Zeng W.Zeng Z.K.Zeng M.Zha X.X.Zhai B.B.Zhang F.Zhang H.M.Zhang H.Y.Zhang J.L.Zhang L.X.Zhang Li Zhang Lu Zhang P.F.Zhang P.P.Zhang R.Zhang S.B.Zhang S.R.Zhang S. Key laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Beijing 100049China TIANFU Cosmic Ray research Center ChengduSichuanChina Dublin Institute for Advanced Studies 31 Fitzwilliam Place2DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State Key laboratory of Particle Detection and {1. BeijingChina university of Science and Technology of{1. Hefei 230026AnhuiChina school of Physical Science and Technology&school of {2. Science and Technology Southwest Jiaotong UniversityChengdu 610031SichuanChina College of Physics Sichuan UniversityChengdu 610065SichuanChina school of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina Center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina Key laboratory of Dark Matter and Space Astronomy&Key laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina Key laboratory for {1. in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key laboratory of Cosmic Rays(Tibet {1.) Ministry of EducationLhasa 850000TibetChina national Astronomical Observatories Chinese Academy of SciencesBeijing 100101China Hebei Normal university Shijiazhuang 050024HebeiChina school of Physics and Astronomy(Zhuhai)&Sino-French Institute of Nuclear {1. and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000China school of Physics(Guangzhou) Sun Yat-sen UniversityGuangzhou 510275GuangdongChina Dipartimento di Fisica dell’Universitàdi Napoli“Federico II” Complesso Universitario di Monte Sant’Angelovia Cinthia80126 NapoliItaly school of Physics and Astronomy Yunnan UniversityKunming 650091YunnanChina Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève

Introduction One of main scientiﬁc goals of the Large High Altitude Air Shower Observatory(LHAASO)is to accurately measure the energy spectra of different cosmic ray compositions around the‘knee’*** Wide Field-of-View(FoV)Cherenkov Telescope Array(WFCTA),which is one of the main detectors of LHAASO and has 1. telescopes,is built to achieve this *** telescopes are put together and point to connected directions for a larger *** Telescopes are deployed spatially as close as possible,but due to their own size,the distance between two adjacent telescopes is about 1. ***,the Cherenkov lateral distribution and the parallax between the two telescopes should be considered in the event building process for images crossing over the boundaries of FoVs of the *** event building method for Cherenkov images measured by multiple telescopes of WFCTA is *** performance of the shower measurements using the combined images is evaluated by comparing with showers that are fully contained by a virtual telescope in *** and conclusion It is proved that the developed event building process can help to increase the FoV of WFCTA by 30%while maintaining the same reconstruction quality,compared to the separate telescope reconstruction method.

关键词： method directions conclusion